Currently there is no standard way in Java to add validity constraints to Java classes. This is in contrast to other languages like XML in which (using XML Schema) relatively rich constraints may be specified. With the advent of annotations (JSR 175) in J2SE 5.0 a convenient mechanism now exists to allow such constraints to be specified in the Java meta model. This article explores By kapluniin Public bookmarkswith annotationsjavavalidation
JTrac open source and customizable issue-tracking in Java JTrac is a generic issue-tracking web-application that can be easily customized by adding custom fields and drop-downs. Features include customizable workflow, field level permissions, e-mail integration, file attachments and a detailed history view. bugfreeissueopenopensourcesourcetrackertracking By errantin Toolswith issue-trackingjavaopen-source